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Jambhulkar PP, Singh B, Raja M, Ismaiel A, Lakshman DK, Tomar M, Sharma P. Genetic diversity and antagonistic properties of Trichoderma strains from the crop rhizospheres in southern Rajasthan, India. Sci Rep 2024; 14:8610. [PMID: 38616195 PMCID: PMC11016547 DOI: 10.1038/s41598-024-58302-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/18/2023] [Accepted: 03/27/2024] [Indexed: 04/16/2024] Open
Abstract
There are fewer studies on Trichoderma diversity in agricultural fields. The rhizosphere of 16 crops was analyzed for Trichoderma species in 7 districts of Rajasthan state of India. Based on DNA sequence of translation elongation factor 1α (tef-1α), and morphological characteristics, 60 isolates were identified as 11 species: Trichoderma brevicompactum, species in Harzianum clade identified as T. afroharzianum, T. inhamatum, T. lentiforme, T. camerunense, T. asperellum, T. asperelloides, T. erinaceum, T. atroviride, T. ghanense, and T. longibrachiatum. T. brevicompactum is the most commonly occurring strain followed by T. afroharzianum. No new species were described in this study. T. lentiforme, showed its first occurrence outside the South American continent. The morphological and cultural characteristics of the major species were observed, described, and illustrated in detail. The isolates were tested for their antagonistic effect against three soilborne plant pathogens fungi: Sclerotium rolfsii, Rhizoctonia solani, and Fusarium verticillioides in plate culture assays. One of the most potent strains was T. afroharzianum BThr29 having a maximum in vitro inhibition of S. rolfsii (76.6%), R. solani (84.8%), and F. verticillioides (85.7%). The potential strain T. afroharzianum BThr29 was also found to be efficient antagonists against soil borne pathogens in in vivo experiment. Such information on crop selectivity, antagonistic properties, and geographic distribution of Trichoderma species will be beneficial for developing efficient Trichoderma-based biocontrol agents.
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Affiliation(s)
- Prashant P Jambhulkar
- Department of Plant Pathology, College of Agriculture, Rani Lakshmi Bai Central Agricultural University (RLBCAU), Jhansi, Uttar Pradesh, 284003, India.
- Agricultural Research Station, Banswara, Rajasthan, 327001, India.
| | - Bhumica Singh
- Agricultural Research Station, Banswara, Rajasthan, 327001, India
| | - M Raja
- Department of Plant Pathology, Sri Karan Narendra Agriculture University, Jobner-Jaipur, Rajasthan, 303328, India
| | - Adnan Ismaiel
- Sustainable Agricultural Systems Laboratory, USDA-ARS, Beltsville, MD, 20705, USA
| | - Dilip K Lakshman
- Sustainable Agricultural Systems Laboratory, USDA-ARS, Beltsville, MD, 20705, USA.
| | - Maharishi Tomar
- ICAR-Indian Grassland and Fodder Research Institute, Jhansi, 284003, India
| | - Pratibha Sharma
- Department of Plant Pathology, Sri Karan Narendra Agriculture University, Jobner-Jaipur, Rajasthan, 303328, India
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Early ML, Raja M, Luo A, Solow M, Matusiak K, Eke AC, Shehata N, Kuo KH, Lanzkron S, Malinowski AK, Pecker LH. Blood pressure thresholds for the diagnosis of hypertensive disorders of pregnancy in sickle cell disease. Br J Haematol 2024; 204:1039-1046. [PMID: 38093478 PMCID: PMC10939908 DOI: 10.1111/bjh.19248] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/22/2023] [Revised: 10/11/2023] [Accepted: 11/27/2023] [Indexed: 01/19/2024]
Abstract
In this retrospective cohort study of singleton pregnancies in people with sickle cell disease (SCD) delivered at two academic centres between 1990 and 2021, we collected demographic and SCD-related data, pregnancy outcomes, and the highest systolic and diastolic blood pressure (SBP and DBP) at seven time periods. We compared the characteristics of subjects with new or worsening proteinuria (NWP) during pregnancy to those without. We then constructed receiver operating characteristic (ROC) curves to determine the blood pressure (BP) that best identifies those with NWP. The SBP or DBP thresholds which maximized sensitivity and specificity were 120 mmHg SBP (sensitivity: 55.2%, specificity: 73.5%) and 70 mmHg DBP (sensitivity: 27.6%, specificity: 67.7%). The existing BP threshold of 140/90 mmHg lacked sensitivity in both genotype groups (HbSS/HbSβ0 : SBP = 21% sensitive, DBP = 5.3% sensitive; HbSS/HbSβ+ : SBP = 10% sensitive, DBP = 0% sensitive). Finally, percent change in SBP, DBP and MAP were all poor tests for identifying NWP. Existing BP thresholds used to diagnose hypertensive disorders of pregnancy (HDP) are not sensitive for pregnant people with SCD. For this population, lowering the BP threshold that defines HDP may improve identification of those who need increased observation, consideration of early delivery and eclampsia prophylaxis.
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Affiliation(s)
- Macy L. Early
- Division of Hematology, Department of Medicine, Johns Hopkins University School of Medicine, Baltimore, MD, USA
| | - Maidah Raja
- Division of Hematology, Department of Medicine, Johns Hopkins University School of Medicine, Baltimore, MD, USA
| | - Amy Luo
- Division of Hematology, Department of Medicine, Johns Hopkins University School of Medicine, Baltimore, MD, USA
- Bloomberg School of Public Health, Johns Hopkins University, Baltimore, MD, USA
| | - Marissa Solow
- Division of Haematology, Department of Medicine, University Health Network, Toronto, Canada
- Department of Medicine, University of Toronto, Toronto, Canada
| | - Kristine Matusiak
- Division of Haematology, Department of Medicine, University Health Network, Toronto, Canada
- Department of Medicine, University of Toronto, Toronto, Canada
| | - Ahizechukwu C. Eke
- Division of Maternal-Fetal Medicine & Clinical Pharmacology
- Department of Gynecology and Obstetrics, Johns Hopkins University School of Medicine, Baltimore, MD, USA
| | - Nadine Shehata
- Division of Hematology, Sinai Health System, Department of Medicine, University of Toronto, Toronto, Ontario, Canada
| | - Kevin H.M. Kuo
- Division of Haematology, Department of Medicine, University Health Network, Toronto, Canada
- Department of Medicine, University of Toronto, Toronto, Canada
| | - Sophie Lanzkron
- Division of Hematology, Department of Medicine, Johns Hopkins University School of Medicine, Baltimore, MD, USA
| | - Ann Kinga Malinowski
- Division of Hematology, Sinai Health System, Department of Medicine, University of Toronto, Toronto, Ontario, Canada
- Division of Maternal-Fetal Medicine, Sinai Health System
- Department of Obstetrics and Gynecology, University of Toronto, Toronto, Ontario, Canada
- Lunenfeld-Tanenbaum Research Institute, Sinai Health System, Toronto, Ontario, Canada
| | - Lydia H. Pecker
- Division of Hematology, Department of Medicine, Johns Hopkins University School of Medicine, Baltimore, MD, USA
- Department of Gynecology and Obstetrics, Johns Hopkins University School of Medicine, Baltimore, MD, USA
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Umadevan I, Rajasekaran R, Anto Bennet M, Rajmohan V, Vetrivelan V, Sankar K, Raja M. Synthesis, spectroscopic, chemical reactivity, topology analysis and molecular docking study of ethyl 5-hydroxy-2-thioxo-4-(p-tolyl)-6-(trifluoromethyl)hexahydropyrimidine-5-carboxylate. Heliyon 2024; 10:e24588. [PMID: 38322968 PMCID: PMC10844023 DOI: 10.1016/j.heliyon.2024.e24588] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/29/2023] [Revised: 01/10/2024] [Accepted: 01/10/2024] [Indexed: 02/08/2024] Open
Abstract
The organofluorine hexahydropyrimidine derivatives are used in the drug discovery due to its steric nature to hydrogen and its extreme electronegativity. The Ethyl 5-hydroxy-2-thioxo-4-(p-tolyl)-6-(trifluoromethyl)hexahydropyrimidine-5-carboxylate (ETP5C) compound was synthesized and characterized by NMR (13C and 1H), FT-IR and UV-Vis spectroscopic techniques for experimentally and theoretically and elemental analyses, mass spectra also investigated. The most stable structure of synthesized molecule was studied by PES analysis in gas and liquid medium. The structural parameters such as bond length and bond angle of the title molecule have been obtained by DFT/B3LYP/6-311++G (d,p) set and compared with the structurally related experimental data of the compounds. The π-to-π* transition of the ETP5C molecule is identified using UV-Vis absorption spectral analysis. In addition, the chemical stability and reactivity are investigated using HOMO-LUMO analysis. The minimal HOMO-LUMO energy gap (4.6255 eV) clearly explains that the ETP5C molecule is more reactive for receptors. The nucleophilic and electrophilic regions such as active sites have been shown by MEP, ELF, LOL and Fukui functions. The second order optical effect has been explained by NLO analysis. The docking was performed with antineoplastic proteins that exhibit against the development of tumor cells.
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Affiliation(s)
- I. Umadevan
- Research and Development Centre, Bharathiar University, Coimbatore, 641046, Tamilnadu, India
| | - R. Rajasekaran
- Research and Development Centre, Bharathiar University, Coimbatore, 641046, Tamilnadu, India
- Department of Physics, Thiru Kolanjiappar Govt. Arts College, Virdhachalam, 606001, Tamilnadu, India
| | - M. Anto Bennet
- Department of Electronics and Communications Engineering, Vel Tech Rangarajan Dr.Sagunthala R&D Institute of Science and Technology, Chennai, 600062, Tamilnadu, India
| | - V. Rajmohan
- Department of Electronics and Communications Engineering, Saveetha School of Engineering(SIMATS), Thandalam, Chennai, 602105, Tamilnadu, India
| | - V. Vetrivelan
- Department of Physics, Government College of Engineering, Srirangam, Tiruchirappalli 620012, Tamilnadu, India
| | - K. Sankar
- Research and Development Centre, Bharathiar University, Coimbatore, 641046, Tamilnadu, India
| | - M. Raja
- Department of Physics, Govt. Thirumagal Mills College, Gudiyattam, 632602, Vellore, Tamilnadu, India
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Halalau A, Roy S, Hegde A, Khanal S, Langnas E, Raja M, Homayouni R. Risk factors associated with glycated hemoglobin A1c trajectories progressing to type 2 diabetes. Ann Med 2023; 55:371-378. [PMID: 36621941 PMCID: PMC9833406 DOI: 10.1080/07853890.2022.2164347] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/10/2023] Open
Abstract
BACKGROUND AND OBJECTIVE The notion of prediabetes, defined by the ADA as glycated hemoglobin A1c (HbA1c) of 5.7-6.4%, implies increased vascular inflammatory and immunologic processes and higher risk for developing diabetes mellitus and major cardiovascular events. We aimed to determine the risk factors associated with rapid progression of normal and prediabetes patients to type 2 diabetes mellitus (T2DM). METHODS Retrospective cohort study in a single 8-hospital health system in southeast Michigan, between 2006 and 2020. All patients with HbA1c <6.5% at baseline and at least 2 other HbA1c measurements were clustered in five trajectories encompassing more than 95% of the study population. Multivariate linear regression analysis was performed to examine the association of demographic and comorbidities with HbA1c trajectories progressing to diabetes. RESULTS A total of 5,347 prediabetic patients were clustered based on their HbA1c progression (C1: 4,853, C2: 253, C66: 102, C12: 85, C68: 54). The largest cluster (C1) had a baseline median HbA1c value of 6.0% and exhibited stable HbA1c levels in prediabetic range across all subsequent years. The smallest cluster (C68) had the lowest median baseline HbA1c value and also remained stable across subsequent years. The proportion of normal HbA1c in each of the pre-diabetic trajectories ranged from 0 to 12.7%, whereas 81.5% of the reference cluster (C68) were normal HbA1c at baseline. The C2 (steady rising) trajectory was significantly associated with BMI (adj OR 1.10, 95%CI 1.03-1.17), and family history of DM (adj OR 2.75, 95%CI 1.32-5.74). With respect to the late rising trajectories, baseline BMI was significantly associated with both C66 and C12 trajectory (adj OR 1.10, 95%CI 1.03-1.18) and (adj OR 1.13, 95%CI 1.05-1.23) respectively, whereas, the C12 trajectory was also significantly associated with age (adj OR 1.62, 95%CI 1.04-2.53) and history of MACE (adj OR 3.20, 95%CI 1.14-8.93). CONCLUSIONS We suggest that perhaps a more aggressive preventative approach should be considered in patients with a family history of T2DM who have high BMI and year-to-year increase in HbA1c, whether they have normal hemoglobin A1c or they have prediabetes.KEY MESSAGESProgression to diabetes from normal or prediabetic hemoglobin A1c within four years is associated with baseline BMI.A steady rise in HbA1c during a four-year period is associated with age and family history of T2DM, whereas age and personal history of MACE are associated with a rapid rise in HbA1c.A more aggressive preventative approach should be considered in patients with a family history of T2DM who have high BMI and year-to-year increase in HbA1c.
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Affiliation(s)
- Alexandra Halalau
- Department of Internal Medicine, Beaumont Hospital, Royal Oak, MI, USA.,Oakland University William Beaumont School of Medicine, Rochester, MI, USA
| | - Sujoy Roy
- Department of Foundational Medical Studies, Oakland University William Beaumont School of Medicine, Rochester, MI, USA
| | - Arpitha Hegde
- Department of Electrical and Computer Engineering, Oakland University, Rochester, MI, USA
| | - Sumesh Khanal
- Department of Internal Medicine, Rochester General Hospital, Rochester, NY, USA
| | - Emily Langnas
- Department of Internal Medicine, Beaumont Hospital, Royal Oak, MI, USA
| | - Maidah Raja
- Oakland University William Beaumont School of Medicine, Rochester, MI, USA
| | - Ramin Homayouni
- Department of Foundational Medical Studies, Oakland University William Beaumont School of Medicine, Rochester, MI, USA
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Gananandan K, Thomas V, Woo WL, Boddu R, Kumar R, Raja M, Balaji A, Kazankov K, Mookerjee RP. Fat mass: a novel digital biomarker for remote monitoring that may indicate risk for malnutrition and new complications in decompensated cirrhosis. BMC Med Inform Decis Mak 2023; 23:180. [PMID: 37705043 PMCID: PMC10498640 DOI: 10.1186/s12911-023-02288-z] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/24/2022] [Accepted: 09/04/2023] [Indexed: 09/15/2023] Open
Abstract
BACKGROUND Cirrhosis is associated with sarcopaenia and fat wasting, which drive decompensation and mortality. Currently, nutritional status, through body composition assessment, is not routinely monitored in outpatients. Given the deleterious outcomes associated with poor nutrition in decompensated cirrhosis, there is a need for remotely monitoring this to optimise community care. METHODS A retrospective analysis was conducted on patients monitored remotely with digital sensors post hospital discharge, to assess outcomes and indicators of new cirrhosis complications. 15 patients had daily fat mass measurements as part of monitoring over a median 10 weeks, using a Withing's bioimpedance scale. The Clinical Frailty Score (CFS) was used to assess frailty and several liver disease severity scores were assessed. RESULTS 73.3% (11/15) patients were male with a median age of 63 (52-68). There was a trend towards more severe liver disease based on CLIF-Consortium Acute Decompensation (CLIF-C AD) scores in frail patients vs. those not frail (53 vs 46, p = 0.072). When the cohort was split into patients who gained fat mass over 8 weeks vs. those that lost fat mass, the baseline CLIF-C AD scores and WBC were significantly higher in those that lost fat (58 vs 48, p = 0.048 and 11.2 × 109 vs 4.7 × 109, p = 0.031). CONCLUSIONS This proof-of-principle study shows feasibility for remote monitoring of fat mass and nutritional reserve in decompensated cirrhosis. Our results suggest fat mass is associated with greater severity of acute decompensation and may serve as an indicator of systemic inflammatory response. Further prospective studies are required to validate this digital biomarker.
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Affiliation(s)
- K Gananandan
- Institute for Liver and Digestive Health, University College London, London, UK.
| | - V Thomas
- Institute for Liver and Digestive Health, University College London, London, UK
| | - W L Woo
- Royal Free Hospital, London, UK
| | - R Boddu
- CyberLiver Limited, London, UK
| | - R Kumar
- CyberLiver Limited, London, UK
| | - M Raja
- CyberLiver Limited, London, UK
| | | | - K Kazankov
- Institute for Liver and Digestive Health, University College London, London, UK
- Department of Hepatology and Gastroenterology, Aarhus University Hospital, Aarhus, Denmark
| | - R P Mookerjee
- Institute for Liver and Digestive Health, University College London, London, UK
- Department of Hepatology and Gastroenterology, Aarhus University Hospital, Aarhus, Denmark
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Carrithers B, Raja M, Gemmill A, Cayton Vaught KC, Christianson MS, Lanzkron S, Pecker LH. Knowledge of fertility and perception of fertility treatment among adults with sickle cell disease (KNOW FERTILITY). Front Glob Womens Health 2023; 4:1191064. [PMID: 37360321 PMCID: PMC10287173 DOI: 10.3389/fgwh.2023.1191064] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/21/2023] [Accepted: 05/16/2023] [Indexed: 06/28/2023] Open
Abstract
Introduction This study assessed fertility knowledge in adults with sickle cell disease using the Cardiff Fertility Knowledge Scale and Fertility Treatment Perception Survey and compared knowledge scores in respondents with sickle cell disease to previously reported unaffected cohorts. Methods This cross-sectional study surveyed adults over age 18 with sickle cell disease at an adult sickle cell disease center using a 35-question survey addressing infertility risk factor knowledge and perceptions of fertility treatment. Analyses included summary statistics for continuous and categorical variables, univariate linear regression, and Mann-Whitney U tests for group comparisons of Fertility Knowledge Scale scores. Fertility Treatment Perception Survey scores were measured by medians of the two positive statements and four negative statements to generate separate positive and negative treatment belief scores. Statistical significance was set at p < 0.05 for all analyses. Results Ninety-two respondents (71 female, 21 male) with median age of 32 years (IQR: 25.0, 42.5) completed the survey between October 2020-May 2021. Sixty-five percent of respondents reported taking sickle cell disease treatment and 18% reported refusing at least one sickle cell disease treatment due to fertility concerns. The mean Fertility Knowledge Score was 49% (SD: 5.2), lower than reported in an international cohort (57% vs. 49%, p = 0.001), and higher than in a cohort of reproductive-aged Black women in the USA (49% vs. 38%, p = 0.001). Less than 50% of respondents correctly identified common infertility risk factors including sexually transmitted infections, advanced age, and obesity. Mean positive fertility perception score was 3 (IQR 3, 4), and negative fertility perception score was 3.5 (IQR 3, 4). Factors associated with agreement with negative fertility perception statements included: trying to conceive, refusing sickle cell disease treatment, and undergoing fertility treatment. Discussion Opportunities exist to improve knowledge of infertility risk factors among adults with sickle cell disease. This study raises the possibility that nearly one in five adults with sickle cell disease refuse SCD treatment or cure due to infertility concerns. Education about common infertility risks factors needs to be addressed alongside disease- and treatment- associated fertility risks.
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Affiliation(s)
- Bria Carrithers
- Medical College of Georgia at Augusta University, Augusta, GA, United States
- Division of Hematology, Department of Medicine, Johns Hopkins School of Medicine, Baltimore, MD, United States
| | - Maidah Raja
- Division of Hematology, Department of Medicine, Johns Hopkins School of Medicine, Baltimore, MD, United States
| | - Alison Gemmill
- Department of Population, Family, and Reproductive Health, Johns Hopkins University Bloomberg School of Public Health, Baltimore, MD, United States
| | - Kamaria C. Cayton Vaught
- Division of Reproductive Endocrinology & Infertility, Department of Gynecology & Obstetrics, Johns Hopkins University School of Medicine, Baltimore, MD, United States
- Division of Reproductive Endocrinology & Infertility, Johns Hopkins School of Medicine, Baltimore MD, United States
| | - Mindy S. Christianson
- Division of Reproductive Endocrinology & Infertility, Department of Gynecology & Obstetrics, Johns Hopkins University School of Medicine, Baltimore, MD, United States
- Division of Reproductive Endocrinology & Infertility, Johns Hopkins School of Medicine, Baltimore MD, United States
| | - Sophie Lanzkron
- Division of Hematology, Department of Medicine, Johns Hopkins School of Medicine, Baltimore, MD, United States
| | - Lydia H. Pecker
- Division of Hematology, Department of Medicine, Johns Hopkins School of Medicine, Baltimore, MD, United States
- Division of Reproductive Endocrinology & Infertility, Johns Hopkins School of Medicine, Baltimore MD, United States
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Wells M, Raja M, Rahman S. Corrigendum to 'Point-of-care viscoelastic testing' [BJA Education 22 (2022) 416-423]. BJA Educ 2023; 23:118-119. [PMID: 36844441 PMCID: PMC9947957 DOI: 10.1016/j.bjae.2022.11.009] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022] Open
Abstract
[This corrects the article DOI: 10.1016/j.bjae.2022.07.003.].
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Affiliation(s)
- M. Wells
- Barts Health NHS Trust, London, UK
| | - M. Raja
- Royal Free London NHS Foundation Trust, London, UK
| | - S. Rahman
- Royal Free London NHS Foundation Trust, London, UK
- Corresponding author:
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Raja M, Radhakrishnan S, Milan RA, Hurse D, Dean C. Assessing Chronic Kidney Disease Knowledge, Beliefs, and Risk among Detroit Residents. American Journal of Health Education 2023. [DOI: 10.1080/19325037.2022.2163006] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/28/2023]
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Thamarai A, Raja M, Sakthivel S, Kumaran S, Muthu S, Narayana B, Ramesh P, Sevvanthi S, Javed S, Naick BN, Irfan A. The chemical reactivity and antimalarial investigation of crystal structure (2E)-3-(biphenyl-4-yl)-1-(4-chlorophenyl)prop-2-en-1-one and hydroxyphenyl, nitrophenyl substituted chalcone derivative molecules. J Mol Struct 2023. [DOI: 10.1016/j.molstruc.2023.135001] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/21/2023]
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Wells M, Raja M, Rahman S. Point-of-care viscoelastic testing. BJA Educ 2022; 22:416-423. [PMID: 36304915 PMCID: PMC9596284 DOI: 10.1016/j.bjae.2022.07.003] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/12/2022] [Revised: 07/04/2022] [Accepted: 07/12/2022] [Indexed: 10/31/2022] Open
Affiliation(s)
- M. Wells
- Barts Health NHS Trust, London, UK
| | - M. Raja
- Royal Free London NHS Foundation Trust, London, UK
| | - S. Rahman
- Royal Free London NHS Foundation Trust, London, UK
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Thamarai A, Vadamalar R, Kumaran S, Ramesh P, Muthu S, Aayisha S, Raja M, Narayana B, Irfan A. Investigations on spectroscopic, ADMET properties and drug-likeness, molecular docking, chemical properties of (2E)-3-(biphenyl-4-yl)-1-(2,4-dichlorophenyl)-prop-2-en-1-one by combined density-functional theory. J Mol Struct 2022. [DOI: 10.1016/j.molstruc.2022.132973] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/18/2023]
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Kouli O, Murray V, Bhatia S, Cambridge WA, Kawka M, Shafi S, Knight SR, Kamarajah SK, McLean KA, Glasbey JC, Khaw RA, Ahmed W, Akhbari M, Baker D, Borakati A, Mills E, Thavayogan R, Yasin I, Raubenheimer K, Ridley W, Sarrami M, Zhang G, Egoroff N, Pockney P, Richards T, Bhangu A, Creagh-Brown B, Edwards M, Harrison EM, Lee M, Nepogodiev D, Pinkney T, Pearse R, Smart N, Vohra R, Sohrabi C, Jamieson A, Nguyen M, Rahman A, English C, Tincknell L, Kakodkar P, Kwek I, Punjabi N, Burns J, Varghese S, Erotocritou M, McGuckin S, Vayalapra S, Dominguez E, Moneim J, Salehi M, Tan HL, Yoong A, Zhu L, Seale B, Nowinka Z, Patel N, Chrisp B, Harris J, Maleyko I, Muneeb F, Gough M, James CE, Skan O, Chowdhury A, Rebuffa N, Khan H, Down B, Fatimah Hussain Q, Adams M, Bailey A, Cullen G, Fu YXJ, McClement B, Taylor A, Aitken S, Bachelet B, Brousse de Gersigny J, Chang C, Khehra B, Lahoud N, Lee Solano M, Louca M, Rozenbroek P, Rozitis E, Agbinya N, Anderson E, Arwi G, Barry I, Batchelor C, Chong T, Choo LY, Clark L, Daniels M, Goh J, Handa A, Hanna J, Huynh L, Jeon A, Kanbour A, Lee A, Lee J, Lee T, Leigh J, Ly D, McGregor F, Moss J, Nejatian M, O'Loughlin E, Ramos I, Sanchez B, Shrivathsa A, Sincari A, Sobhi S, Swart R, Trimboli J, Wignall P, Bourke E, Chong A, Clayton S, Dawson A, Hardy E, Iqbal R, Le L, Mao S, Marinelli I, Metcalfe H, Panicker D, R HH, Ridgway S, Tan HH, Thong S, Van M, Woon S, Woon-Shoo-Tong XS, Yu S, Ali K, Chee J, Chiu C, Chow YW, Duller A, Nagappan P, Ng S, Selvanathan M, Sheridan C, Temple M, Do JE, Dudi-Venkata NN, Humphries E, Li L, Mansour LT, Massy-Westropp C, Fang B, Farbood K, Hong H, Huang Y, Joan M, Koh C, Liu YHA, Mahajan T, Muller E, Park R, Tanudisastro M, Wu JJG, Chopra P, Giang S, Radcliffe S, Thach P, Wallace D, Wilkes A, Chinta SH, Li J, Phan J, Rahman F, Segaran A, Shannon J, Zhang M, Adams N, Bonte A, Choudhry A, Colterjohn N, Croyle JA, Donohue J, Feighery A, Keane A, McNamara D, Munir K, Roche D, Sabnani R, Seligman D, Sharma S, 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Wyn-Griffiths F, Brew A, Kaur G, Soni D, Tickle A, Akbar Z, Appleyard T, Figg K, Jayawardena P, Johnson A, Kamran Siddiqui Z, Lacy-Colson J, Oatham R, Rowlands B, Sludden E, Turnbull C, Allin D, Ansar Z, Azeez Z, Dale VH, Garg J, Horner A, Jones S, Knight S, McGregor C, McKenna J, McLelland T, Packham-Smith A, Rowsell K, Spector-Hill I, Adeniken E, Baker J, Bartlett M, Chikomba L, Connell B, Deekonda P, Dhar M, Elmansouri A, Gamage K, Goodhew R, Hanna P, Knight J, Luca A, Maasoumi N, Mahamoud F, Manji S, Marwaha PK, Mason F, Oluboyede A, Pigott L, Razaq AM, Richardson M, Saddaoui I, Wijeyendram P, Yau S, Atkins W, Liang K, Miles N, Praveen B, Ashai S, Braganza J, Common J, Cundy A, Davies R, Guthrie J, Handa I, Iqbal M, Ismail R, Jones C, Jones I, Lee KS, Levene A, Okocha M, Olivier J, Smith A, Subramaniam E, Tandle S, Wang A, Watson A, Wilson C, Chan XHF, Khoo E, Montgomery C, Norris M, Pugalenthi PP, Common T, Cook E, Mistry H, Shinmar HS, Agarwal G, Bandyopadhyay S, Brazier B, Carroll L, Goede A, Harbourne A, Lakhani A, Lami M, Larwood J, Martin J, Merchant J, Pattenden S, Pradhan A, Raafat N, Rothwell E, Shammoon Y, Sudarshan R, Vickers E, Wingfield L, Ashworth I, Azizi S, Bhate R, Chowdhury T, Christou A, Davies L, Dwaraknath M, Farah Y, Garner J, Gureviciute E, Hart E, Jain A, Javid S, Kankam HK, Kaur Toor P, Kaz R, Kermali M, Khan I, Mattson A, McManus A, Murphy M, Nair K, Ngemoh D, Norton E, Olabiran A, Parry L, Payne T, Pillai K, Price S, Punjabi K, Raghunathan A, Ramwell A, Raza M, Ritehnia J, Simpson G, Smith W, Sodeinde S, Studd L, Subramaniam M, Thomas J, Towey S, Tsang E, Tuteja D, Vasani J, Vio M, Badran A, Adams J, Anthony Wilkinson J, Asvandi S, Austin T, Bald A, Bix E, Carrick M, Chander B, Chowdhury S, Cooper Drake B, Crosbie S, D Portela S, Francis D, Gallagher C, Gillespie R, Gravett H, Gupta P, Ilyas C, James G, Johny J, Jones A, Kinder F, MacLeod C, Macrow C, Maqsood-Shah A, Mather J, McCann L, McMahon R, Mitham E, Mohamed M, Munton E, Nightingale K, O'Neill K, Onyemuchara I, Senior R, Shanahan A, Sherlock J, Spyridoulias A, Stavrou C, Stokes D, Tamang R, Taylor E, Trafford C, Uden C, Waddington C, Yassin D, Zaman M, Bangi S, Cheng T, Chew D, Hussain N, Imani-Masouleh S, Mahasivam G, McKnight G, Ng HL, Ota HC, Pasha T, Ravindran W, Shah K, Vishnu K S, Zaman S, Carr W, Cope S, Eagles EJ, Howarth-Maddison M, Li CY, Reed J, Ridge A, Stubbs T, Teasdaled D, Umar R, Worthington J, Dhebri A, Kalenderov R, Alattas A, Arain Z, Bhudia R, Chia D, Daniel S, Dar T, Garland H, Girish M, Hampson A, Kyriacou H, Lehovsky K, Mullins W, Omorphos N, Vasdev N, Venkatesh A, Waldock W, Bhandari A, Brown G, Choa G, Eichenauer CE, Ezennia K, Kidwai Z, Lloyd-Thomas A, Macaskill Stewart A, Massardi C, Sinclair E, Skajaa N, Smith M, Tan I, Afsheen N, Anuar A, Azam Z, Bhatia P, Davies-kelly N, Dickinson S, Elkawafi M, Ganapathy M, Gupta S, Khoury EG, Licudi D, Mehta V, Neequaye S, Nita G, Tay VL, Zhao S, Botsa E, Cuthbert H, Elliott J, Furlepa M, Lehmann J, Mangtani A, Narayan A, Nazarian S, Parmar C, Shah D, Shaw C, Zhao Z, Beck C, Caldwell S, Clements JM, French B, Kenny R, Kirk S, Lindsay J, McClung A, McLaughlin N, Watson S, Whiteside E, Alyacoubi S, Arumugam V, Beg R, Dawas K, Garg S, Lloyd ER, Mahfouz Y, Manobharath N, Moonesinghe R, Morka N, Patel K, Prashar J, Yip S, Adeeko ES, Ajekigbe F, Bhat A, Evans C, Farrugia A, Gurung C, Long T, Malik B, Manirajan S, Newport D, Rayer J, Ridha A, Ross E, Saran T, Sinker A, Waruingi D, Allen R, Al Sadek Y, Alves do Canto Brum H, Asharaf H, Ashman M, Balakumar V, Barrington J, Baskaran R, Berry A, Bhachoo H, Bilal A, Boaden L, Chia WL, Covell G, Crook D, Dadnam F, Davis L, De Berker H, Doyle C, Fox C, Gruffydd-Davies M, Hafouda Y, Hill A, Hubbard E, Hunter A, Inpadhas V, Jamshaid M, Jandu G, Jeyanthi M, Jones T, Kantor C, Kwak SY, Malik N, Matt R, McNulty P, Miles C, Mohomed A, Myat P, Niharika J, Nixon A, O'Reilly D, Parmar K, Pengelly S, Price L, Ramsden M, Turnor R, Wales E, Waring H, Wu M, Yang T, Ye TTS, Zander A, Zeicu C, Bellam S, Francombe J, Kawamoto N, Rahman MR, Sathyanarayana A, Tang HT, Cheung J, Hollingshead J, Page V, Sugarman J, Wong E, Chiong J, Fung E, Kan SY, Kiang J, Kok J, Krahelski O, Liew MY, Lyell B, Sharif Z, Speake D, Alim L, Amakye NY, Chandrasekaran J, Chandratreya N, Drake J, Owoso T, Thu YM, Abou El Ela Bourquin B, Alberts J, Chapman D, Rehnnuma N, Ainsworth K, Carpenter H, Emmanuel T, Fisher T, Gabrel M, Guan Z, Hollows S, Hotouras A, Ip Fung Chun N, Jaffer S, Kallikas G, Kennedy N, Lewinsohn B, Liu FY, Mohammed S, Rutherfurd A, Situ T, Stammer A, Taylor F, Thin N, Urgesi E, Zhang N, Ahmad MA, Bishop A, Bowes A, Dixit A, Glasson R, Hatta S, Hatt K, Larcombe S, Preece J, Riordan E, Fegredo D, Haq MZ, Li C, McCann G, Stewart D, Baraza W, Bhullar D, Burt G, Coyle J, Deans J, Devine A, Hird R, Ikotun O, Manchip G, Ross C, Storey L, Tan WWL, Tse C, Warner C, Whitehead M, Wu F, Court EL, Crisp E, Huttman M, Mayes F, Robertson H, Rosen H, Sandberg C, Smith H, Al Bakry M, Ashwell W, Bajaj S, Bandyopadhyay D, Browlee O, Burway S, Chand CP, Elsayeh K, Elsharkawi A, Evans E, Ferrin S, Fort-Schaale A, Iacob M, I K, Impelliziere Licastro G, Mankoo AS, Olaniyan T, Otun J, Pereira R, Reddy R, Saeed D, Simmonds O, Singhal G, Tron K, Wickstone C, Williams R, Bradshaw E, De Kock Jewell V, Houlden C, Knight C, Metezai H, Mirza-Davies A, Seymour Z, Spink D, Wischhusen S. Evaluation of prognostic risk models for postoperative pulmonary complications in adult patients undergoing major abdominal surgery: a systematic review and international external validation cohort study. Lancet Digit Health 2022; 4:e520-e531. [PMID: 35750401 DOI: 10.1016/s2589-7500(22)00069-3] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/15/2021] [Revised: 01/07/2022] [Accepted: 04/06/2022] [Indexed: 06/15/2023]
Abstract
BACKGROUND Stratifying risk of postoperative pulmonary complications after major abdominal surgery allows clinicians to modify risk through targeted interventions and enhanced monitoring. In this study, we aimed to identify and validate prognostic models against a new consensus definition of postoperative pulmonary complications. METHODS We did a systematic review and international external validation cohort study. The systematic review was done in accordance with the Preferred Reporting Items for Systematic Reviews and Meta-Analyses guidelines. We searched MEDLINE and Embase on March 1, 2020, for articles published in English that reported on risk prediction models for postoperative pulmonary complications following abdominal surgery. External validation of existing models was done within a prospective international cohort study of adult patients (≥18 years) undergoing major abdominal surgery. Data were collected between Jan 1, 2019, and April 30, 2019, in the UK, Ireland, and Australia. Discriminative ability and prognostic accuracy summary statistics were compared between models for the 30-day postoperative pulmonary complication rate as defined by the Standardised Endpoints in Perioperative Medicine Core Outcome Measures in Perioperative and Anaesthetic Care (StEP-COMPAC). Model performance was compared using the area under the receiver operating characteristic curve (AUROCC). FINDINGS In total, we identified 2903 records from our literature search; of which, 2514 (86·6%) unique records were screened, 121 (4·8%) of 2514 full texts were assessed for eligibility, and 29 unique prognostic models were identified. Nine (31·0%) of 29 models had score development reported only, 19 (65·5%) had undergone internal validation, and only four (13·8%) had been externally validated. Data to validate six eligible models were collected in the international external validation cohort study. Data from 11 591 patients were available, with an overall postoperative pulmonary complication rate of 7·8% (n=903). None of the six models showed good discrimination (defined as AUROCC ≥0·70) for identifying postoperative pulmonary complications, with the Assess Respiratory Risk in Surgical Patients in Catalonia score showing the best discrimination (AUROCC 0·700 [95% CI 0·683-0·717]). INTERPRETATION In the pre-COVID-19 pandemic data, variability in the risk of pulmonary complications (StEP-COMPAC definition) following major abdominal surgery was poorly described by existing prognostication tools. To improve surgical safety during the COVID-19 pandemic recovery and beyond, novel risk stratification tools are required. FUNDING British Journal of Surgery Society.
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Raja M, Rosell‐Melé A. Quantitative Link Between Sedimentary Chlorin and Sea-Surface Chlorophyll- a. J Geophys Res Biogeosci 2022; 127:e2021JG006514. [PMID: 35966617 PMCID: PMC9359122 DOI: 10.1029/2021jg006514] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 06/29/2021] [Revised: 03/12/2022] [Accepted: 03/14/2022] [Indexed: 06/15/2023]
Abstract
Primary productivity in the ocean plays a major role in the global carbon cycle. To estimate its changes through geological time, different sedimentary proxies are used. However, the relative weights of the various processes driving the sedimentary accumulation of organic matter are not fully constrained or represent the flux of specific algal classes. Here, we compare sea-surface chlorophyll-a (SSchla) abundance estimated from remote sensing data over the last 20 years with the sedimentary concentration of its derivatives (i.e., chlorin) on a suite of 140 core-top sediments from different biogeochemical regions. We estimate with field data that only 0.33% of SSchla in tropical and subtropical regions is transferred to surface sediments in the form of chlorin. Despite the small fraction of chlorin that arrive to the sea-floor, the sedimentary spatial distribution of chlorin is driven primarily by SSchla concentration in high and moderate productivity locations (SSchla > 0.20 mg·m-3). Our calibration paves the way for the use of chlorin as quantitative proxies of primary productivity in paleoreconstructions and cautions on their use in low primary productivity settings.
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Affiliation(s)
- M. Raja
- Institut de Ciència i Tecnologia Ambientals (ICTA‐UAB)Universitat Autònoma de BarcelonaBellaterraSpain
- Present at: University of NottinghamGSK Centre for Sustainable ChemistryNottinghamUK
| | - A. Rosell‐Melé
- Institut de Ciència i Tecnologia Ambientals (ICTA‐UAB)Universitat Autònoma de BarcelonaBellaterraSpain
- Institució Catalana de Recerca i Estudis Avançats (ICREA)BarcelonaSpain
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Abstract
Educators of the 21st century have to be techno-friendly to cater to students' needs who embrace the latest technologies. Using visual-based methods like PowerPoint presentations, videos, animation, etc., has helped the students retain information compared to the traditional methods. One of the breath-taking advancements in visualizing technology is Virtual Reality (VR). This paper provides an overview of Virtual Reality (VR) technology and its applications in education. During this study, to better understand VR's contributions to education, a systematic review of the literature was conducted from Scopus, IEEE, and Google Scholar databases. The paper aims to highlight the core concepts, the origination of the technology, its impact, associated problems, and future directions of VR concerning education and the methods considered by notorious researchers. Identified gaps in the chosen literature works were also highlighted, and suggestions to overcome the identified gaps were summarized.
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Raja M, Dhanasekaran D, Vasudevan D. Light Weight Cryptography based Medical Data and Image Encryption Scheme. WEB 2021. [DOI: 10.14704/web/v18i2/web18309] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022] Open
Abstract
Many medical companies use cloud technology to collect, distribute and transmit medical records. Given the need for medical information, confidentiality is a key issue. In this study, we propose an encrypted scheme based on encrypted data for an electronic healthcare environment. We use hybrid Attribute based encryption and Triple DES encryption technique (ABETDES) scheme, including identity-based cryptography (IBC), to ensure data privacy through communication channels և to improve the reliability of cloud computing. There are also limited indicators of light processing and storage resources. This solves a serious maintenance problem and ensures that a private key is created where it is not blind. The introduction of a security option, a comprehensive security analysis to protect ciphertext, shows that our program is effective against many known attacks and compared to existing methods.
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Janani S, Rajagopal H, Muthu S, Aayisha S, Raja M, Irfan A. Structural, vibrational, electronic properties, hirshfeld surface analysis topological and molecular docking studies of N-[2-(diethylamino)ethyl]-2-methoxy-5-methylsulfonylbenzamide. Heliyon 2021; 7:e08186. [PMID: 34712858 PMCID: PMC8531569 DOI: 10.1016/j.heliyon.2021.e08186] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/03/2021] [Revised: 07/25/2021] [Accepted: 10/13/2021] [Indexed: 12/01/2022] Open
Abstract
The theoretical (Freebase, Cationic species) and experimental investigations on the molecular structural, spectroscopic characterization, and electronic properties of N2M5MB are reported. The most stable structure of the N2M5MB was analysed by employing Density Functional Theory (DFT) at different functional such as B3LYP, PBEPBE, TPSSTPSS and IEF-PCM (Freebase) and Cationic (B3LYP, IEF-PCM)/ 6-311++G (d,p) basis set level. The Potential Energy Scan (PES) analysis has been employed to investigate the conformational preference of the title molecule. The optimized molecular geometry, vibrational assignments (FT-IR, FT-Raman) of wavenumbers have been performed for freebase, cationic species (Gas, PCM) for the individual modes of vibration. The experimental UV-Vis absorption spectrum was obtained and compared with the simulated (Freebase, Cationic species) Time-Dependent (TD-DFT-M062X) method. The FMO's, electron-hole distributions, HOMA, FLU, Hirshfeld surface analysis, Electrostatic potential surface (ESP), Fukui functions, and topological parameters were discussed. Molecular docking studies were performed for the N2M5MB (ligand) into the active site of targeted proteins (1H22, 4DTL, 5OV9) which belong to AChE inhibitors with the minimum binding energy was detected.
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Affiliation(s)
- S. Janani
- Department of Physics, Queen Mary's College, Chennai, 600004, Tamilnadu, India
- University of Madras, Chennai, 600005, Tamilnadu, India
| | - Hemamalini Rajagopal
- Department of Physics, Queen Mary's College, Chennai, 600004, Tamilnadu, India
- University of Madras, Chennai, 600005, Tamilnadu, India
| | - S. Muthu
- Department of Physics, Arignar Anna Govt. Arts College, Cheyyar, 604407, Tamilnadu, India
- Department of Physics, Puratchi Thalaivar Dr.M.G.R Govt. Arts and Science College, Uthiramerur 603406, Tamilnadu, India
| | - S. Aayisha
- Department of Physics, Meenakshi College for Women, Chennai, 600024, Tamilnadu, India
| | - M. Raja
- Department of Physics, Govt. Thirumagal Mills College, Gudiyattam, Vellore 632602, India
| | - Ahmad Irfan
- Department of Chemistry, College of Science, King Khalid University, P.O. Box 9004, Abha 61413, Saudi Arabia
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Ramasamy S, Bylapudi SK, Jameel MR, Raja M. Entrapped appendicitis in post TAPP mesh repair. Ann R Coll Surg Engl 2021; 103:e317-e318. [PMID: 34414784 DOI: 10.1308/rcsann.2021.0037] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022] Open
Abstract
Transabdominal preperitoneal (TAPP) repair is a common laparoscopic inguinal hernia repair technique performed worldwide. A rare long-term complication of TAPP is mesh-induced appendicitis, of which only four cases have been described in the literature to date. We report a case of appendicitis due to appendix entrapped in the TAPP mesh.
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Affiliation(s)
- S Ramasamy
- Milton Keynes University Hospital NHS Foundation Trust, UK
| | - S K Bylapudi
- Milton Keynes University Hospital NHS Foundation Trust, UK
| | - M R Jameel
- Milton Keynes University Hospital NHS Foundation Trust, UK
| | - M Raja
- Milton Keynes University Hospital NHS Foundation Trust, UK
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Raja M, Khan H, Sankarasubramanian S, Sonawat D, Ramani V, Ramanujam K. Binder-free thin graphite fiber mat sandwich electrode architectures for energy-efficient vanadium redox flow batteries. Catal Today 2021. [DOI: 10.1016/j.cattod.2021.02.012] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
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20
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Fazilath Basha A, Liakath Ali Khan F, Muthu S, Raja M. Computational evaluation on molecular structure (Monomer, Dimer), RDG, ELF, electronic (HOMO-LUMO, MEP) properties, and spectroscopic profiling of 8-Quinolinesulfonamide with molecular docking studies. COMPUT THEOR CHEM 2021. [DOI: 10.1016/j.comptc.2021.113169] [Citation(s) in RCA: 15] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
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Raja M, Yaacob Y, Wong Z, Chik I. Hepatocellular carcinoma: A local registry on risk factors, imaging patterns, treatment strategies and overall survival. Med J Malaysia 2021; 76:151-156. [PMID: 33742621] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 06/12/2023]
Abstract
INTRODUCTION Hepatocellular carcinoma (HCC) is among the common death-causing cancers worldwide. This liver malignancy is primarily diagnosed using radiological imaging techniques. Most of the patients in Malaysia present late and were diagnosed at an intermediate or advanced stage of Barcelona Clinic of Liver Cancer (BCLC). This causes a limitation on the treatment options for the patients. MATERIALS AND METHODS We performed a retrospective crosssectional study of HCC cases within a five-year period in our center with data collected from Hospital Canselor Tunku Mukhriz (HCTM). This study examines the HCC risk factors, the pattern of diagnosis, treatment options and overall survival. RESULTS The findings from this study showed that viral hepatitis was the highest risk factor in which most of the patients were elderly males who presented with abdominal distension. In addition, given the high prevalence of metabolic diseases Malaysia, it is predicted that the number of non-alcoholic steatohepatosis (NASH)-related HCC cases might increase. Alpha-fetoprotein (AFP) proved to have no significant role in the detection of the disease. The number of patients detected at early BCLC was minimal, resulting in limited options of treatment. Overall survival of our HCC patients was poor at 17 months. CONCLUSION We conclude that HCC patients in HCTM mostly presented at late stage to hospital, hence limiting the treatment options and resulted in poor survival rate. Disease awareness should be implemented at primary care level to detect HCC at its early stage. Subsequently, a multidisciplinary hospital team is required to manage the disease at its different stages of presentation.
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Affiliation(s)
- M Raja
- Hospital Canselor Tunku Mukhriz, Faculty of Medicine, Department of Radiology, Kuala Lumpur, Malaysia.
| | - Y Yaacob
- Hospital Canselor Tunku Mukhriz, Faculty of Medicine, Department of Radiology, Kuala Lumpur, Malaysia
| | - Z Wong
- Hospital Canselor Tunku Mukhriz, Faculty of Medicine, Department of Internal Medicine, Kuala Lumpur, Malaysia
| | - I Chik
- Hospital Canselor Tunku Mukhriz, Faculty of Medicine, Department of Surgery, Kuala Lumpur, Malaysia
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Rahuman MH, Muthu S, Raajaraman BR, Raja M, Umamahesvari H. Investigations on 2-(4-Cyanophenylamino) acetic acid by FT-IR,FT-Raman, NMR and UV-Vis spectroscopy, DFT (NBO, HOMO-LUMO, MEP and Fukui function) and molecular docking studies. Heliyon 2020; 6:e04976. [PMID: 33005793 PMCID: PMC7511746 DOI: 10.1016/j.heliyon.2020.e04976] [Citation(s) in RCA: 18] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/11/2020] [Revised: 07/26/2020] [Accepted: 09/16/2020] [Indexed: 01/18/2023] Open
Abstract
Extensive quantum chemical calculation have been carried out to investigate the Fourier Transform Infrared(FT-IR), Fourier Transform Raman(FT-RAMAN) and Nuclear magnetic resonance(NMR), and Ultra Violet-Visible(UV-vis) spectra of 2-(4-Cyanophenylamino) acetic acid. The molecular structure, fundamental vibrational frequencies and intensities of the vibrational bands were interpreted with the aid of optimizations and normal coordinate force field calculations based on density functional theory (DFT) and ab initio HF methods with 6–311++G(d,p) basis set. The theoretical vibrational wavenumbers are compared with the experimental values. The calculated HOMO-LUMO energies were found to be-6.2056 eV and -1.2901 eV which indicates the charge transfer within the molecule. Natural bond orbital analysis has been carried out to explain the charge transfer (or) delocalization of charge due to the intra molecular interactions. Molecular Electrostatic Potential (MEP), First order hyperpolarizability, and Fukui functions calculation were also performed. The thermodynamic properties of the title compound were studied for different temperatures. Molecular docking studies were made on the title compound to study the hydrogen bond interactions and the minimum binding energy was calculated.
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Affiliation(s)
- M Habib Rahuman
- Department of Physics, Arignar Anna Govt. Arts College, Cheyyar, 604 407, Tamil Nadu, India
| | - S Muthu
- Department of Physics, Arignar Anna Govt. Arts College, Cheyyar, 604 407, Tamil Nadu, India.,Department of Physics, PuratchiThalaivar Dr. MGR Govt Arts and Science College, Uthiramerur, 603 406, Tamil Nadu, India
| | - B R Raajaraman
- Department of Physics, St. Joseph College of Engineering, Sriperumbudur, 602 117, Tamil Nadu, India
| | - M Raja
- Department of Physics, Government Thirumagal Mills College, Vellore 635 803, Tamil Nadu, India
| | - H Umamahesvari
- Department of Science and Humanities, Sreenivasa Institute of Technology and Management Studies (Autonomous), Chittoor 517127, Andhra Pradesh, India
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Sevvanthi S, Muthu S, Raja M, Aayisha S, Janani S. PES, molecular structure, spectroscopic (FT-IR, FT-Raman), electronic (UV-Vis, HOMO-LUMO), quantum chemical and biological (docking) studies on a potent membrane permeable inhibitor: dibenzoxepine derivative. Heliyon 2020; 6:e04724. [PMID: 32885075 PMCID: PMC7452420 DOI: 10.1016/j.heliyon.2020.e04724] [Citation(s) in RCA: 34] [Impact Index Per Article: 8.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/19/2020] [Revised: 07/11/2020] [Accepted: 08/11/2020] [Indexed: 01/06/2023] Open
Abstract
The dibenzoxepines derivatives have found a broad application in biological and pharmaceutical fields as new prospective drugs. So, the molecule (3aS,12bS)-5-Chlor-2-methyl-2,3,3a,12b-tetrahydro-1H-dibenzo[2,3:6,7]oxepino[4,5-c]pyrrol has been characterized by DFT (Density Functional Theory) approach to predict the important properties of it. The minimum energy conformer has been found by PES (Potential Energy Surface) and then the structure is optimized. Further, the structure is characterized spectroscopically by FT-IR and FT-Raman techniques to know the functional group and chemically active atoms. The geometrical parameters, PED (Potential Energy Distribution) assignments have also been reported. The electronic properties of the title compound have been explained by UV-Vis and HOMO-LUMO analyses that describe the charge transfer between the atoms of the molecule. Molecular Electrostatic Potential (MEP), Electron Localization Function (ELF) and Localized Orbital Locator (LOL) have been depicted to know the chemically active regions. The electrophilic and nucleophilic regions have been shown by Fukui functions. The Non-Linear Optics (NLO) for non-linear optical effects and the Natural Bond Orbital (NBO) for charge delocalization were studied. To study the biological activity of the title compound, molecular docking has been performed which suggests that the title molecule may act as a membrane permeable inhibitor.
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Affiliation(s)
- S Sevvanthi
- Department of Physics, Arignar Anna Govt. Arts College, Cheyyar, 604407, Tamilnadu, India.,Thiruvalluvar University, Serkkadu, Vellore, 632 115, Tamilnadu, India
| | - S Muthu
- Department of Physics, Arignar Anna Govt. Arts College, Cheyyar, 604407, Tamilnadu, India.,Department of Physics, Puratchi Thalaivar Dr M.G.R Govt Arts and Science College, Uthiramerur, 603406, Tamilnadu, India
| | - M Raja
- Department of Physics, Govt Thirumagal Mills College, Gudiyattam, 632602, Vellore, Tamilnadu, India
| | - S Aayisha
- Department of Physics, Meenakshi College for Women, Chennai, 600024, Tamilnadu, India
| | - S Janani
- Department of Physics, Queen Mary's College, Chennai 600005, Tamilnadu, India
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Ali K, Raja M. Evidence-based strategies to reduce contamination from aerosolised microbes in dental practice environment. Evid Based Dent 2020; 21:80-81. [PMID: 32978530 PMCID: PMC7517050 DOI: 10.1038/s41432-020-0108-4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/11/2023]
Abstract
Cohort selection The aim was to evaluate interventions to minimise microbial contamination from aerosol generating procedures in the dental office. Seven electronic databases were searched using key words such as 'aerosols', 'droplets', 'spatter', 'microbial loads' etc to identify relevant randomised controlled trials and prospective non-randomised clinical trials until 6 April 2020.Data sources PubMed; Scopus; Cochrane Central Register of Controlled Trials; Cochrane Database of Systematic Reviews; Open Grey; ClinicalTrials.gov; National Research Register; and hand searches.Data analysis Eligible studies were analysed for effectiveness of various interventions on the microbial counts in the aerosols generated in the dental office using predefined criteria. Data were analysed for assessment of quality of evidence and confidence in the estimated effect, risk of bias and other analyses using Stata 15.1 software. PRISMA guidelines extension for network meta-analysis were followed for reporting.Results Initial search identified 266 studies, of which 35 were evaluated for full text. Finally, 29 studies fulfilled the eligibility criteria for qualitative synthesis. The majority of the included studies were published in the last decade, and 21 out of the 29 studies were randomised controlled trials. However, based on comparable procedural settings (study design, study populations, interventions and outcome measures), only 11 were eligible for contribution to the network meta-analysis. The setting of all interventions was ultrasonic scaling of adult patients in a clinical dental practice environment, and involved 16 direct and 29 indirect comparisons. A multivariate meta-analysis showed pre-procedural mouth rinse with tempered chlorhexidine 0.2% at 47°C was most effective in reducing post-procedural bacterial load compared to the control. A mean difference of -0.92 (95% CI -15.4 to -0.29) in log10 colony-forming units was observed in air samples within 90 cm of the dental unit.Conclusions Notwithstanding the limitations of this network meta-analysis, pre-procedural mouth rinse with tempered chlorhexidine appears to be most effective in reducing bacterial counts in aerosols generated during dental operative procedures. Further randomised controlled clinical trials based on robust designs are required to establish the effectiveness of antimicrobial agents in reducing aerosol-related microbial loads (bacteria and viruses) in clinical environments.
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Affiliation(s)
- K Ali
- Professor/Consultant in Oral Surgery, University of Plymouth Peninsula Dental School, Plymouth, UK
| | - M Raja
- Microbiologist, University of Health Sciences, Lahore, Pakistan
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Rahuman MH, Muthu S, Raajaraman BR, Raja M. Quantum computational, spectroscopic and molecular docking studies on 2-acetylthiophene and its bromination derivative. J Mol Struct 2020. [DOI: 10.1016/j.molstruc.2020.128129] [Citation(s) in RCA: 18] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/18/2023]
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Printz V, Saito R, Thomas O, Breen H, Kirk S, Kong CH, O'Kane A, Eddama M, Engledow A, Freeman SK, Frost A, Goh C, Lee G, Poonawala R, Suri A, Taribagil P, Brown H, Christie S, Dean S, Gravell R, Haywood E, Holt F, Pilsworth E, Rabiu R, Roscoe HW, Shergill S, Sriram A, Sureshkumar A, Tan LC, Tanna A, Vakharia A, Bhullar S, Brannick S, Dunne E, Frere M, Kerin M, Kumar KM, Pratumsuwan T, Quek R, Salman M, Van Den Berg N, Wong C, Ahluwalia J, Bagga R, Borg CM, Calabria C, Draper A, Farwana M, Joyce H, Khan A, Mazza M, Pankin G, Sait MS, Sandhu N, Virani N, Wong J, Woodhams K, Croghan N, Ghag S, Hogg G, Ismail O, John N, Nadeem K, Naqi M, Noe SM, Sharma A, Tan S, Begum F, Best R, Collishaw A, Glasbey J, Golding D, Gwilym B, Harrison P, Jackman T, Lewis N, Luk YL, Porter T, Potluri S, Stechman M, Tate S, Thomas D, Walford B, Auld F, Bleakley A, Johnston S, Jones C, Khaw J, Milne S, O'Neill S, Singh KKR, Smith R, Swan A, Thorley N, Yalamarthi S, Yin ZD, Ali A, Balian V, Bana R, Clark K, Livesey C, McLachlan G, Mohammad M, Pranesh N, Richards C, Ross F, Sajid M, Brooke M, Francombe J, Gresly J, Hutchinson S, Kerrigan K, Matthews E, Nur S, Parsons L, Sandhu A, Vyas M, White F, Zulkifli A, Zuzarte L, Al-Mousawi A, Arya J, Azam S, Yahaya AA, Gill K, Hallan R, Hathaway C, Leptidis I, McDonagh L, Mitrasinovic S, Mushtaq N, Pang N, Peiris GB, Rinkoff S, Chan L, Christopher E, Farhan-Alanie MMH, Gonzalez-Ciscar A, Graham CJ, Lim H, McLean KA, Paterson HM, Rogers A, Roy C, Rutherford D, Smith F, Zubikarai G, Al-Khudairi R, Bamford M, Chang M, Cheng J, Hedley C, Joseph R, Mitchell B, Perera S, Rothwell L, Siddiqui A, Smith J, Taylor K, Wright OW, Baryan HK, Boyd G, Conchie H, Cox L, Davies J, Gardner S, Hill N, Krishna K, Lakin F, Scotcher S, Alberts J, Asad M, Barraclough J, Campbell A, Marshall D, Wakeford W, Cronbach P, D'Souza F, Gammeri E, Houlton J, Hall M, Kethees A, Patel R, Perera M, Prowle J, Shaid M, Webb E, Beattie S, Chadwick M, El-Taji O, Haddad S, Mann M, Patel M, Popat K, Rimmer L, Riyat H, Smith H, Anandarajah C, Cipparrone M, Desai K, Gao C, Goh ET, Howlader M, Jeffreys N, Karmarkar A, Mathew G, Mukhtar H, Ozcan E, Renukanthan A, Sarens N, Sinha C, Woolley A, Bogle R, Komolafe O, Loo F, Waugh D, Zeng R, Crewe A, Mathias J, Mills A, Owen A, Prior A, Saunders I, Baker A, Crilly L, McKeon J, Ubhi HK, Adeogun A, Carr R, Davison C, Devalia S, Hayat A, Karsan RB, Osborne C, Scott K, Weegenaar C, Wijeyaratne M, Babatunde F, Barnor-Ahiaku E, Beattie G, Chitsabesan P, Dixon O, Hall N, Ilenkovan N, Mackrell T, Nithianandasivam N, Orr J, Palazzo F, Saad M, Sandland-Taylor L, Sherlock J, Ashdown T, Chandler S, Garsaa T, Lloyd J, Loh SY, Ng S, Perkins C, Powell-Chandler A, Smith F, Underhill R. Perioperative intravenous contrast administration and the incidence of acute kidney injury after major gastrointestinal surgery: prospective, multicentre cohort study. Br J Surg 2020; 107:1023-1032. [PMID: 32026470 DOI: 10.1002/bjs.11453] [Citation(s) in RCA: 16] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/25/2019] [Revised: 09/21/2019] [Accepted: 11/08/2019] [Indexed: 01/14/2023]
Abstract
BACKGROUND This study aimed to determine the impact of preoperative exposure to intravenous contrast for CT and the risk of developing postoperative acute kidney injury (AKI) in patients undergoing major gastrointestinal surgery. METHODS This prospective, multicentre cohort study included adults undergoing gastrointestinal resection, stoma reversal or liver resection. Both elective and emergency procedures were included. Preoperative exposure to intravenous contrast was defined as exposure to contrast administered for the purposes of CT up to 7 days before surgery. The primary endpoint was the rate of AKI within 7 days. Propensity score-matched models were adjusted for patient, disease and operative variables. In a sensitivity analysis, a propensity score-matched model explored the association between preoperative exposure to contrast and AKI in the first 48 h after surgery. RESULTS A total of 5378 patients were included across 173 centres. Overall, 1249 patients (23·2 per cent) received intravenous contrast. The overall rate of AKI within 7 days of surgery was 13·4 per cent (718 of 5378). In the propensity score-matched model, preoperative exposure to contrast was not associated with AKI within 7 days (odds ratio (OR) 0·95, 95 per cent c.i. 0·73 to 1·21; P = 0·669). The sensitivity analysis showed no association between preoperative contrast administration and AKI within 48 h after operation (OR 1·09, 0·84 to 1·41; P = 0·498). CONCLUSION There was no association between preoperative intravenous contrast administered for CT up to 7 days before surgery and postoperative AKI. Risk of contrast-induced nephropathy should not be used as a reason to avoid contrast-enhanced CT.
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Amul B, Muthu S, Raja M, Sevvanthi S. Molecular structure, spectroscopic (FT-IR, FT-Raman, NMR, UV-VIS), chemical reactivity and biological examinations of Ketorolac. J Mol Struct 2020. [DOI: 10.1016/j.molstruc.2020.128040] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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Ramesh P, Lydia Caroline M, Muthu S, Raja M, Ben Geoffrey A, Aayisha S, David HA. Theoretical and experimental spectroscopic studies of monomeric and dimeric structures of 4-hydroxybenzamide. J Mol Struct 2020. [DOI: 10.1016/j.molstruc.2020.127742] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/18/2023]
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Thamarai A, Vadamalar R, Raja M, Muthu S, Narayana B, Ramesh P, Muhamed RR, Sevvanthi S, Aayisha S. Molecular structure interpretation, spectroscopic (FT-IR, FT-Raman), electronic solvation (UV-Vis, HOMO-LUMO and NLO) properties and biological evaluation of (2E)-3-(biphenyl-4-yl)-1-(4-bromophenyl)prop-2-en-1-one: Experimental and computational modeling approach. Spectrochim Acta A Mol Biomol Spectrosc 2020; 226:117609. [PMID: 31622823 DOI: 10.1016/j.saa.2019.117609] [Citation(s) in RCA: 30] [Impact Index Per Article: 7.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/07/2019] [Revised: 07/18/2019] [Accepted: 10/06/2019] [Indexed: 06/10/2023]
Abstract
In this present work, a molecule (2E)-3-(biphenyl-4-yl)-1-(4-bromophenyl) prop-2-en-1-one (3BPO) was synthesized and the structure has been characterized by using spectroscopic techniques. The most stable conformational structure of title compound has been calculated using HF-6-31G(d,p) basis set. DFT method were used through B3LYP/6-311++G(d,p) basis set to optimize the structure of the title compound. The geometrical parameters, vibrational wavenumbers and electronic properties have also been performed. The electronic properties for HOMO-LUMO, UV-Vis and MEP maps were contemplated by IEFPCM model with various solvation impacts which depends on TD-DFT ((M062X for UV and B3LYP for HOMO-LUMO, MEP)/6-311++G(d,p)) strategies. The NLO activity of title compound has been examined by solvation DFT/B3LYP technique with 6-311++G(d,p) premise set. Mean while, lone pair of donor-acceptor interactions and H bond donor/acceptor surface has been obtained by which a charge transfer mechanism can be explained. Molecular docking has been explored to comprehend the coupling transportation of the examined ligand with human folate receptor alpha in complex with folic corrosive protein (4LRH).
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Affiliation(s)
- A Thamarai
- Department of Physics, Muthurangam Govt. Arts College, Vellore, 632002, Tamilnadu, India; Department of Physics, Govt. Thirumagal Mills College, Gudiyattam, 632602, Vellore, Tamilnadu, India
| | - R Vadamalar
- Department of Physics, Muthurangam Govt. Arts College, Vellore, 632002, Tamilnadu, India
| | - M Raja
- Department of Physics, Govt. Thirumagal Mills College, Gudiyattam, 632602, Vellore, Tamilnadu, India
| | - S Muthu
- Department of Physics, Arignar Anna Govt. Arts College, Cheyyar, 604 407, Tamilnadu, India.
| | - B Narayana
- Department of Chemistry, Mangalore University, Mangalagangotri, 574 199, Karnataka, India
| | - P Ramesh
- Department of Physics, Govt. Thirumagal Mills College, Gudiyattam, 632602, Vellore, Tamilnadu, India
| | - R Raj Muhamed
- Department of Physics, Jamal Mohamed College, Tiruchirappalli, 620 020, Tamilnadu, India
| | - S Sevvanthi
- Department of Physics, Arignar Anna Govt. Arts College, Cheyyar, 604 407, Tamilnadu, India
| | - S Aayisha
- Research and Development Centre, Bharathiar University, Coimbatore, 641046, Tamilnadu, India; Department of Physics, Meenakshi College for Women, Chennai, 600024, Tamilnadu, India
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Thamarai A, Vadamalar R, Raja M, Muthu S, Narayana B, Ramesh P, Sevvanthi S, Aayisha S. Molecular structure conformational analyses, solvent-electronic studies through theoretical studies and biological profiling of (2E)-1-(3-bromo-2-thienyl)-3-(4-chlorophenyl)-prop-2-en-1-one. J Mol Struct 2020. [DOI: 10.1016/j.molstruc.2019.127349] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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Poojith N, Potla KM, Osório FAP, Valverde C, Vankayalapati S, Suchetan PA, Raja M. Y-shaped potential third-order nonlinear optical material – 3-(2-amino-2-oxoethyl)-5-methyl hexanoic acid: an analysis of structural, spectroscopic and docking studies. NEW J CHEM 2020. [DOI: 10.1039/d0nj02658a] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
The merit of this work is that it has clearly established the structure and the nonlinear optical properties relationship of the title molecule and it could be helpful for developing new nonlinear optical materials.
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Affiliation(s)
| | - Krishna Murthy Potla
- Department of Chemistry
- Bapatla Engineering College (Autonomous)
- Acharya Nagarjuna University Post Graduate Research Centre
- Bapatla-522 102
- India
| | - Francisco A. P. Osório
- Instituto de Física
- Universidade Federal de Goiás
- Goiânia
- Brazil
- Pontifícia Universidade Católica de Goiás
| | - Clodoaldo Valverde
- Laboratório de Modelagem Molecular Aplicada e Simulação (LaMMAS)
- Campus de Ciências Exatas e Tecnológicas
- Universidade Estadual de Goiás
- Anápolis
- Brazil
| | - Suneetha Vankayalapati
- Sri Ramachandra Institute of Higher Education and Research
- Chennai
- India
- Department of Chemistry
- Bapatla College of Arts and Sciences
| | - P. A. Suchetan
- Department of Studies and Research in Chemistry
- University College of Science
- Tumkur University
- Tumkur-572 103
- India
| | - M. Raja
- Department of Physics
- Govt. Thirumagal Mills College
- Vellore
- India
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Ramesh P, Caroline ML, Muthu S, Narayana B, Raja M, Geoffrey ASB. Spectroscopic, chemical reactivity, molecular docking investigation and QSAR analyses of (2E)‑1‑(3‑bromo‑2‑thienyl)‑3‑(2,5‑dimethoxyphenyl)prop‑2‑en‑1‑one. Spectrochim Acta A Mol Biomol Spectrosc 2019; 222:117190. [PMID: 31177006 DOI: 10.1016/j.saa.2019.117190] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/25/2019] [Revised: 05/23/2019] [Accepted: 05/26/2019] [Indexed: 06/09/2023]
Abstract
Chalcone derivative of (2E)‑1‑(3‑bromo‑2‑thienyl)‑3‑(2,5‑dimethoxyphenyl) prop‑2‑en‑1‑one (BTD) molecule has been deliberated for spectroscopic properties experimentally and theoretically. The title compound was characterized by FT-IR, FT-Raman and UV-Vis analyses. The structural activity and vibrational wavenumbers were calculated by a DFT method. The Natural Bond Orbital (NBO) analysis which reveals the hyper conjugative interactions of the present molecule has been performed. Meanwhile, the Chemical reactivity of Condensed Fukui function, MEP and HOMO-LUMO energies of the molecule were also analyzed. Furthermore, Multiwfn 3.3.9 program has been utilized to study MEP and the electron excitation analysis. Docking studies which play a significant role in determining the endothelial nitric oxide synthase inhibition activity of the present compound have also been carried out to predict the binding energy and inhibition constant of the title compound. In addition, drug resemblance parameters have also considered by QSAR study in which the comparison of chemical parameters of chalcone drugs of title molecule has been done.
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Affiliation(s)
- P Ramesh
- Department of Physics, Arignar Anna Govt. Arts College, Cheyyar, 604407, Tamil Nadu, India; Department of Physics, Govt. Thirumagal Mills College, Gudiyattam, 632602 Vellore, Tamil Nadu, India
| | - M Lydia Caroline
- Department of Physics, Dr. Ambedkar Govt. Arts College, Vyasarpadi, Chennai 600039, Tamil Nadu, India
| | - S Muthu
- Department of Physics, Arignar Anna Govt. Arts College, Cheyyar, 604407, Tamil Nadu, India.
| | - B Narayana
- Department of Chemistry, Mangalore University, Mangalagangotri, 574199, Karnataka, India
| | - M Raja
- Department of Physics, Govt. Thirumagal Mills College, Gudiyattam, 632602 Vellore, Tamil Nadu, India
| | - A S Ben Geoffrey
- Department of Physics, Madras Christian College, East Tambaram, 600059, Tamil Nadu, India
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Aayisha S, Renuga Devi T, Janani S, Muthu S, Raja M, Sevvanthi S. DFT, molecular docking and experimental FT-IR, FT-Raman, NMR inquisitions on “4-chloro-N-(4,5-dihydro-1H-imidazol-2-yl)-6-methoxy-2-methylpyrimidin-5-amine”: Alpha-2-imidazoline receptor agonist antihypertensive agent. J Mol Struct 2019. [DOI: 10.1016/j.molstruc.2019.03.056] [Citation(s) in RCA: 50] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/01/2022]
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Suresh Gandhi M, Raja M. Heavy mineral distribution and geochemical studies of coastal sediments between Besant Nagar and Marakkanam, Tamil Nadu, India. Journal of Radiation Research and Applied Sciences 2019. [DOI: 10.1016/j.jrras.2014.06.002] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
Affiliation(s)
- M. Suresh Gandhi
- Department of Geology, University of Madras, Guindy Campus, Chennai, 600 025, India
| | - M. Raja
- Department of Geology, University of Madras, Guindy Campus, Chennai, 600 025, India
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Raja M, Shelton JC, Salamat-Zadeh F, Tavakoli M, Donell S, Watts G, Vadgama P. An electrochemical study of acrylate bone adhesive permeability and selectivity change during in vitro ageing: A model approach to the study of biomaterials and membrane barriers. Anal Chim Acta X 2019; 2:100009. [PMID: 33117976 PMCID: PMC7587029 DOI: 10.1016/j.acax.2019.100009] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/17/2018] [Revised: 02/20/2019] [Accepted: 02/26/2019] [Indexed: 12/02/2022] Open
Abstract
This study assessed the solute permeability of a family of UV and moisture cured acrylates-based adhesives during in vitro ageing in pH 7.4 buffer. Acrylates have a potential role in bone fracture fixation, but their inability to allow microsolute exchange between the fractured bone surfaces may contribute to ineffective healing. Cyclic voltammetry and chronoamperometry were used to determine the diffusion coefficients for various electrochemically active probe molecules (O2, H2O2, acetaminophen, catechol, uric acid and ascorbic acid) at proprietary acrylic, urethane – acrylate and cyanoacrylate adhesives. All adhesives proved to be impermeable for up to 9 days ageing, following which a near-exponential increase in permeability resulted for all solutes. At 18 days, the diffusion coefficients were in the range of 10−5 cm2s−1 for O2 and H2O2 and 10−6 cm2s−1 for the organic solutes; no transport selectivity was seen between the latter. Adhesive joint strength showed a direct, inverse, correlation with permeability, with the more hydrophilic cyanoacrylates showing the greatest loss of strength. Adhesive permeabilisation does not appear to be compatible with the retention of bonding strength, but it serves as a new non-destructive predictor of adhesion strength change during ageing and practical use.
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Affiliation(s)
- M Raja
- School of Materials and Engineering Science, Queen Mary University of London, Mile End Road, London, E1 4NS, UK
| | - J C Shelton
- School of Materials and Engineering Science, Queen Mary University of London, Mile End Road, London, E1 4NS, UK
| | | | - M Tavakoli
- KTN LTD, Suite 220 Business Design Centre, 52 Upper Street, London, N1 0QH, UK
| | - S Donell
- University of East Anglia, Norwich Research Park, Norwich, Norfolk, NR4 7TJ, UK
| | - G Watts
- Liverpool John Moores University, Byrom Street, Liverpool, L3 3AF, UK
| | - P Vadgama
- School of Materials and Engineering Science, Queen Mary University of London, Mile End Road, London, E1 4NS, UK
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Krishnaveni K, Subadevi R, Sivakumar M, Raja M, Prem Kumar T. Synthesis and characterization of graphene oxide capped sulfur/polyacrylonitrile composite cathode by simple heat treatment. J Sulphur Chem 2019. [DOI: 10.1080/17415993.2019.1582655] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Affiliation(s)
- K. Krishnaveni
- Energy Materials Lab, Department of Physics, Alagappa University, Karaikudi, Tamil Nadu, India
| | - R. Subadevi
- Energy Materials Lab, Department of Physics, Alagappa University, Karaikudi, Tamil Nadu, India
| | - M. Sivakumar
- Energy Materials Lab, Department of Physics, Alagappa University, Karaikudi, Tamil Nadu, India
| | - M. Raja
- Electrochemical Power Systems Division, CSIR-Central Electrochemical Research Institute, Karaikudi, Tamil Nadu, India
| | - T. Prem Kumar
- Electrochemical Power Systems Division, CSIR-Central Electrochemical Research Institute, Karaikudi, Tamil Nadu, India
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Sevvanthi S, Muthu S, Raja M. Molecular docking, vibrational spectroscopy studies of (RS)-2-(tert-butylamino)-1-(3-chlorophenyl)propan-1-one: A potential adrenaline uptake inhibitor. J Mol Struct 2018. [DOI: 10.1016/j.molstruc.2018.07.001] [Citation(s) in RCA: 52] [Impact Index Per Article: 8.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/10/2023]
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Rizwana B. F, Muthu S, Prasana JC, Abraham CS, Raja M. Spectroscopic (FT-IR, FT-Raman) investigation, topology (ESP, ELF, LOL) analyses, charge transfer excitation and molecular docking (dengue, HCV) studies on ribavirin. ACTA ACUST UNITED AC 2018. [PMCID: PMC7148669 DOI: 10.1016/j.cdc.2018.09.003] [Citation(s) in RCA: 37] [Impact Index Per Article: 6.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
Affiliation(s)
- Fathima Rizwana B.
- Department of Physics, Madras Christian College, Chennai 600059 Tamil Nadu, India
| | - S. Muthu
- Department of Physics, Arignar Anna Government Arts College, Cheyyar 604407 Tamil Nadu, India
- Corresponding author.
| | | | | | - M. Raja
- Department of Physics, Government Thirumagal Mills College, Vellore 635803 Tamil Nadu, India
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Maheshwari SU, Govindan K, Raja M, Raja A, Pravin MBS, Kumar SV. Synthesis and Characterization of Calcium Phosphate Ceramic/(Poly(vinyl alcohol)-Polycaprolactone) Bilayer Nanocomposites-A Bone Tissue Regeneration Scaffold. J Nanosci Nanotechnol 2018; 18:1548-1556. [PMID: 29448629 DOI: 10.1166/jnn.2018.14259] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/08/2023]
Abstract
β Tricalcium phosphate ceramic was used to reinforce nanofibers in composite mats produced via electrospinning of poly(vinyl alcohol) (PVA), polycaprolactone (PCL) and (PVA: PCL) bilayers. The role of TCP ceramic on morphology of nanocomposites, crystalline structure, functional groups and thermal behaviour of nanocomposites were characterized by SEM, EDAX, XRD, FTIR and DSC analysis. Ultrathin cross-sections of the obtained nanocomposites were morphologically investigated with SEM and all fabricated composites consisted of fibers with average fiber diameter (AFD) around 100 nm except PCL-TCP fibers having AFD in the range of 608 nm. XRD profile presented the main peaks of β-TCP (JCPDS 090169 and JCPDS 70-2065). The characteristic absorption bands of TCP were also identified by FTIR in all the composites. The thermal stability was enhanced after adding TCP filler particles in all the polymer composites. The porosity of PCL-TCP was found around 63% and (PVA-PCL: TCP) composite was found to be 58%. The biocompatibility of the (PVA-PCL: TCP) composite scaffold has also been investigated by culturing MG-63 osteoblast cells on it; primary results showed that the cells adhered and proliferated well on the composite scaffold.
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Affiliation(s)
- S Uma Maheshwari
- Department of Physics, Mother Teresa Women's University, Kodaikanal 624101, Tamil Nadu, India
| | - K Govindan
- Center of Excellence in Advanced Materials and Green Technologies, Department of Chemical Engineering and Material Science, Amrita Vishwa Vidyapeetham, Coimbatore 641112, Tamil Nadu, India
| | - M Raja
- Department of Biotechnology, Karunya University, Coimbatore 641114, Tamil Nadu, India
| | - A Raja
- Department of Nanoscience and Nanotechnology, Karunya University, Coimbatore 641114, India
| | - M B S Pravin
- Department of Nanoscience and Nanotechnology, Karunya University, Coimbatore 641114, India
| | - S Vasanth Kumar
- Department of Chemistry, Karunya University, Coimbatore 641114, Tamil Nadu, India
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Krishnaveni K, Subadevi R, Radhika G, Premkumar T, Raja M, Liu WR, Sivakumar M. Carbon Wrapping Effect on Sulfur/Polyacrylonitrile Composite Cathode Materials for Lithium Sulfur Batteries. J Nanosci Nanotechnol 2018; 18:121-126. [PMID: 29768823 DOI: 10.1166/jnn.2018.14561] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/08/2023]
Abstract
A sulfur-Polyacrylonitrile (PAN)-acetylene black (AB) composite was synthesized via thermal treatment processes. The as-prepared ternary composite was characterized by expending transmission electron microscopy (TEM), X-ray diffraction (XRD), Brunauer-Emmett-Teller (BET) and electrochemical investigations. The improved electrochemical performance can be attributed to the formation of PAN layer, which can keep a tight contact between carbon and sulfur which leads to improve the conductivity. Moreover, the PAN can also act as a flexible cushion to accommodate volume changes of sulfur cathode as well as a barrier to trap soluble polysulfide intermediates during the charge-discharge process. The PAN-S-AB composite exhibits discharge capacity of 620 mAh/g even after 50 cycles with appreciable sustainability. Therefore, the resulting PAN/S/AB composite exhibited as a desirable cathode material for Li-S battery with great performance.
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Affiliation(s)
- K Krishnaveni
- Energy Materials Lab, School of Physics, Alagappa University, Karaikudi 630004, Tamil Nadu, India
| | - R Subadevi
- Energy Materials Lab, School of Physics, Alagappa University, Karaikudi 630004, Tamil Nadu, India
| | - G Radhika
- Energy Materials Lab, School of Physics, Alagappa University, Karaikudi 630004, Tamil Nadu, India
| | - T Premkumar
- Energy and Power Systems Division, Central Electrochemical Research Institute, Karaikudi 630006, TamilNadu, India
| | - M Raja
- Energy and Power Systems Division, Central Electrochemical Research Institute, Karaikudi 630006, TamilNadu, India
| | - Wei-Ren Liu
- Department of Chemical Engineering, Chung-Yuan Christian University, Chung-Li, Taiwan, 32023, ROC
| | - M Sivakumar
- Energy Materials Lab, School of Physics, Alagappa University, Karaikudi 630004, Tamil Nadu, India
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Sevvanthi S, Muthu S, Raja M. Quantum mechanical, spectroscopic studies and molecular docking analysis on 5,5-diphenylimidazolidine-2,4-dione. J Mol Struct 2017. [DOI: 10.1016/j.molstruc.2017.08.015] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
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Uma Maheshwari S, Govindan K, Raja M, Raja A, Pravin M, Vasanth Kumar S. Preliminary studies of PVA/PVP blends incorporated with HAp and β-TCP bone ceramic as template for hard tissue engineering. Biomed Mater Eng 2017; 28:401-415. [DOI: 10.3233/bme-171682] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
Affiliation(s)
- S. Uma Maheshwari
- Department of Physics, Mother Teresa Women’s University, Kodaikanal – 624 101, Tamil Nadu, India
- Department of Nanoscience and Nanotechnology, Karunya University, Coimbatore, India
| | - K. Govindan
- Center of Excellence in Advanced Materials and Green Technologies, Department of Chemical Engineering and Material Science, Amrita Vishwa Vidyapeetham, Coimbatore – 641 112, Tamil Nadu, India
- Department of Biotechnology, Karunya University, Coimbatore – 641 114, Tamil Nadu, India
| | - M. Raja
- Centre for Research in Materials Science and Thermal Management, School of Mechanical Sciences, Karunya University, Coimbatore – 641 114, Tamil Nadu, India
| | - A. Raja
- Department of Nanoscience and Nanotechnology, Karunya University, Coimbatore, India
| | - M.B.S. Pravin
- Department of Nanoscience and Nanotechnology, Karunya University, Coimbatore, India
| | - S. Vasanth Kumar
- Department of Chemistry, Karunya University, Coimbatore – 641 114, Tamil Nadu, India
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Adatia K, Raja M, Vadgama P. An electrochemical study of microporous track-etched membrane permeability and the effect of surface protein layers. Colloids Surf B Biointerfaces 2017; 158:84-92. [PMID: 28683346 DOI: 10.1016/j.colsurfb.2017.06.032] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/23/2017] [Revised: 06/19/2017] [Accepted: 06/20/2017] [Indexed: 11/18/2022]
Abstract
Microporous track-etched membranes serve as important permeable growth surfaces for cell culture where diffusive solute transport is needed across two growth compartments. This study has established effective solute diffusion coefficients for four probe micro-solutes: hydrogen peroxide, pyrocatechol, acetaminophen and ascorbic acid across three track-etched membranes formulated, respectively, from polycarbonate and polyethylene terephthalate. Chronoamperometry and cyclic voltammetry were used for the diffusion measurements. These showed substantially reduced intra-pore diffusion in relation to available pore area. Diffusion coefficients ranging from 1.43×10-10 to 3.17×10-7cm2s-1 were demonstrated. This strongly suggests that water organisation in micro-pores is not equivalent to that of bulk water. Superimposed protein layers of Type I and IV collagen, Type I collagen-fibronectin, Type I collagen-heparin, and Type I collagen-chondroitin sulphate increased diffusional resistance, but with disproportional retardation of ascorbate diffusion due to charge repulsion at collagen-heparin and collagen-chondroitin sulphate combinations. Diffusive resistance at natural tendon and cartilage was considerably smaller; diffusion coefficients ranged from 8.33×10-6 to 1.09×10-8cm2s-1.
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Affiliation(s)
- K Adatia
- School of Materials and Engineering Science, Queen Mary University of London, Mile End Road, London, E1 4NS, United Kingdom.
| | - M Raja
- School of Materials and Engineering Science, Queen Mary University of London, Mile End Road, London, E1 4NS, United Kingdom
| | - P Vadgama
- School of Materials and Engineering Science, Queen Mary University of London, Mile End Road, London, E1 4NS, United Kingdom
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AlRabiah H, Muthu S, Al-Omary F, Al-Tamimi AM, Raja M, Muhamed RR, El-Emam AAR. Molecular structure, vibrational spectra, NBO, Fukui function, HOMO-LUMO analysis and molecular docking study of 6-[(2-methylphenyl)sulfanyl]-5-propylpyrimidine-2,4(1H,3H)-dione. Maced J Chem Chem Eng 2017. [DOI: 10.20450/mjcce.2017.1001] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Abstract
Theoretical and experimental FT-IR and FT-Raman vibrational spectral analysis of 6-[(2-methylphenyl)sulfanyl]-5-propylpyrimidine-2,4(1H,3H)-dione have been recorded in the region 4000-400 cm-1 and 4000-100 cm-1 insolid phase. The molecular geometrical parameters, bond length, bond angle and vibrational wave numbers, harmonic vibrational frequency were investigated using the density functional theory B3LYP method with the 6-311++G(d,p) basis set. The stability of the molecule has been investigated using the natural bond orbital (NBO) analysis. The electronic properties such as HOMO-LUMO energies were determined by the time-dependent DFT approach. The thermodynamical properties and the first order hyperpolarizability and molecular electrostatic potential (MEP) of the title compound were also studied. The electron density-based local reactivity descriptors such as the Fukui functions were calculated to explain the chemical selectivity or reactivity site in the molecule. The molecule orbital contributions were investigated using the total density of states (TDOS), the sum of 𝛼 and 𝛽 electron density of states (𝛼𝛽DOS). The molecular docking (ligand-protein) simulations have been performed using the SWISSDOCK server. The full fitness (FF) score and hydrogen bonding interaction and binding affinity values revealed that title compound can act as potential inhibitor against HIV-1 protease.
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Shameem A, Devendran P, Siva V, Raja M, Bahadur SA, Manikandan A. Preparation and Characterization Studies of Nanostructured CdO Thin Films by SILAR Method for Photocatalytic Applications. J Inorg Organomet Polym Mater 2017. [DOI: 10.1007/s10904-017-0512-1] [Citation(s) in RCA: 42] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
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Raja M, Raj Muhamed R, Muthu S, Suresh M, Muthu K. Synthesis, spectroscopic (FT-IR, FT-Raman, NMR, UV–Visible), Fukui function, antimicrobial and molecular docking study of (E)-1-(3-bromobenzylidene)semicarbazide by DFT method. J Mol Struct 2017. [DOI: 10.1016/j.molstruc.2016.10.045] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
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Raja M, Suriyakumar S, Angulakshmi N, Manuel Stephan A. High performance multi-functional trilayer membranes as permselective separators for lithium–sulfur batteries. Inorg Chem Front 2017. [DOI: 10.1039/c7qi00148g] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
A trilayer membrane comprising MWCNTs and MgAl2O4 coated on either side of a Celgard separator as a permselective membrane for Li–S batteries.
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Affiliation(s)
- M. Raja
- Electrochemical Power Systems Division
- Central Electrochemical Research Institute
- Karaikudi 630 006
- India
| | - Shruti Suriyakumar
- Electrochemical Power Systems Division
- Central Electrochemical Research Institute
- Karaikudi 630 006
- India
| | - N. Angulakshmi
- Electrochemical Power Systems Division
- Central Electrochemical Research Institute
- Karaikudi 630 006
- India
| | - A. Manuel Stephan
- Electrochemical Power Systems Division
- Central Electrochemical Research Institute
- Karaikudi 630 006
- India
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Raja M, Muhamed RR, Muthu S, Suresh M. Synthesis, spectroscopic (FT-IR, FT-Raman, NMR, UV–Visible), first order hyperpolarizability, NBO and molecular docking study of (E)-1-(4-bromobenzylidene)semicarbazide. J Mol Struct 2017. [DOI: 10.1016/j.molstruc.2016.09.017] [Citation(s) in RCA: 49] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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